[Other] Looking for advice for Meshing software

Bazinga · October 19, 2018, 02:55

I am working on 2D rectangular prisms and right now I am back again at creating a suitable mesh. I tried different approaches using cfMesh, ICEM, blockMesh and snappyHexMesh and also looked into other free meshers but was not able to find what I need.

On the right side, you can see the mesh that I created in blockMesh. This mesh gives me some problems at the diagonal connection between the upper and left part of the O-grid creating high unphysical pressure gradients. On the left, you can see how I would like my mesh to look to hopefully remove the problems with the pressure equation.

Any Ideas how I can make the transition between the different parts of the O-grid smoother? If possible I would prefer a free software.

linnemann · October 23, 2018, 02:27

Hi,

Use Salome and make you geometry like this and then mesh with Hex.

linnemann · October 23, 2018, 07:13

Or even better to avoid 1 skewed cell.

Bazinga · October 23, 2018, 07:53

Perfect. Thanks.

BjoernFoam · October 31, 2018, 03:11

Additionally you might find the tool from this thread interesting:

MegaCADs

I haven't been able to test it myself, but It's definitely on my list.
Also it was developed quiet close to your location.

Bazinga · November 2, 2018, 06:59

Quote:

Originally Posted by BjoernFoam

Additionally you might find the tool from this thread interesting:

MegaCADs

I haven't been able to test it myself, but It's definitely on my list.
Also it was developed quiet close to your location.

Cool! Thanks Björn. Will give it a try in the future.

openfoamtutorials · November 24, 2018, 23:07

Gmsh is a good option for relatively simple geometries. My favorite feature is that you can entirely script the geometry and meshing, allowing you to parameterize everything and quickly change the geometry and mesh.

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October 23, 2018, 07:53		#4
Bazinga Senior Member Join Date: Jun 2012 Location: Germany, Bochum Posts: 230 Rep Power: 15	Perfect. Thanks.

October 31, 2018, 03:11		#5
BjoernFoam New Member Björn Join Date: Jul 2016 Location: Germany, Amberg Posts: 7 Rep Power: 9	Additionally you might find the tool from this thread interesting: MegaCADs I haven't been able to test it myself, but It's definitely on my list. Also it was developed quiet close to your location.

November 24, 2018, 23:07		#7
openfoamtutorials New Member Robert Join Date: Nov 2018 Posts: 8 Rep Power: 7	Gmsh is a good option for relatively simple geometries. My favorite feature is that you can entirely script the geometry and meshing, allowing you to parameterize everything and quickly change the geometry and mesh.